/*-----------------------------------------------------------.
  /                      Choose effects                         /
  '-----------------------------------------------------------*/

// Set to 1 for ON or 0 for OFF
#define USE_HDR               1 //[0 or 1] HDR : Not actual HDR - It just tries to mimic an HDR look (relatively high performance cost)
#define USE_LUMASHARPEN       1 //[0 or 1] LumaSharpen : Also sharpens the antialiased edges which makes them less smooth - I'm working on fixing that.
#define USE_TONEMAP           1 //[0 or 1] Tonemap : Adjust gamma, exposure, saturation, bleach and defog. (may cause clipping)
#define USE_VIBRANCE          1 //[0 or 1] Vibrance : Intelligently saturates (or desaturates if you use negative values) the pixels depending on their original saturation.
#define USE_CURVES            1 //[0 or 1] Curves : Contrast adjustments using S-curves.

   /*-----------------------------------------------------------.
  /                  HDR settings                               /
  '-----------------------------------------------------------*/
#define HDRPower 1.0  //[0.00 to 8.00] Strangely lowering this makes the image brighter
#define radius2  0.9  //[0.00 to 8.00] Raising this seems to make the effect stronger and also brighter


   /*-----------------------------------------------------------.
  /                  LumaSharpen settings                       /
  '-----------------------------------------------------------*/
// -- Sharpening --
#define sharp_strength 1.50   //[0.10 to 3.00] Strength of the sharpening
#define sharp_clamp    0.035  //[0.000 to 1.000] Limits maximum amount of sharpening a pixel recieves - Default is 0.035

// -- Advanced sharpening settings --
#define pattern 2        //[1|2|3|4] Choose a sample pattern. 1 = Fast, 2 = Normal, 3 = Wider, 4 = Pyramid shaped.
#define offset_bias 1.5  //[0.0 to 6.0] Offset bias adjusts the radius of the sampling pattern.
                         //I designed the pattern for offset_bias 1.0, but feel free to experiment.

// -- Debug sharpening settings --
#define show_sharpen 0   //[0 or 1] Visualize the strength of the sharpen (multiplied by 4 to see it better)

   /*-----------------------------------------------------------.
  /                  Tonemap settings                           /
  '-----------------------------------------------------------*/
#define Gamma 0.98                      //[0.000 to 2.000] Adjust midtones
#define Exposure 0.05                     //[-1.000 to 1.000] Adjust exposure
#define Saturation 0.10                   //[-1.000 to 1.000] Adjust saturation
#define Bleach 0.0                       //[0.000 to 1.000] Brightens the shadows and fades the colors
#define Defog 0.0                       //[0.000 to 1.000] How much of the color tint to remove
#define FogColor float3(0.0, 0.0, 0.0) //[0.00 to 2.55, 0.00 to 2.55, 0.00 to 2.55] What color to remove - default is blue


   /*-----------------------------------------------------------.
  /                  Vibrance settings                          /
  '-----------------------------------------------------------*/
#define Vibrance     0.10  //[-1.00 to 1.00] Intelligently saturates (or desaturates if you use negative values) the pixels depending on their original saturation.
#define Vibrance_RGB_balance float3(1.00, 1.00, 1.00) //[-10.00 to 10.00,-10.00 to 10.00,-10.00 to 10.00] A per channel multiplier to the Vibrance strength so you can give more boost to certain colors over others


   /*-----------------------------------------------------------.
  /                  Curves settings                            /
  '-----------------------------------------------------------*/
#define Curves_mode     0   //[0|1|2] Choose what to apply contrast to. 0 = Luma, 1 = Chroma, 2 = both Luma and Chroma. Default is 0 (Luma)
#define Curves_contrast 0.1 //[-1.00 to 1.00] The amount of contrast you want

// -- Advanced curve settings --
#define Curves_formula     10 //[1|2|3|4|5|6|7|8|9|10] The contrast s-curve you want to use.
                             //1 = Sine, 2 = Abs split, 3 = Smoothstep, 4 = Exp formula, 5 = Simplified Catmull-Rom (0,0,1,1), 6 = Perlins Smootherstep
                             //7 = Abs add, 8 = Techicolor Cinestyle, 9 = Parabola, 10 = Half-circles.
                             //Note that Technicolor Cinestyle is practically identical to Sine, but runs slower. In fact I think the difference might only be due to rounding errors.
                             //I prefer 2 myself, but 3 is a nice alternative with a little more effect (but harsher on the highlight and shadows) and it's the fastest formula.